Synthesis of work on Budget of Water Vapor and Trace gases in Amazonia Transport and Impacts of...

Synthesis of work on Budget of Water Vapor and Trace

gases in Amazonia

Transport and Impacts of Moisture, Aerosols and Trace Gases into and out

of the Amazon Region

Budgets

COCO2

CH4

Aerosol Water vapor

... BARCA will also focus on those...

Transports in the Planetary Boundary Layer

Surface emission, deposition, absorption

Horizontal advection

Atmospheric vertical advection

Transports by clouds

storage

Trace Gas and Aerosol Budgets

• Status– 2002 RACC and SMOCC campaigns done

but

• New features:– Plume rise super parameterization (3 cloud types)– Aerosol deposition

• Finish by April 2005

Convective Transport of COConvective Transport of CO 24-25 Sep 2002 24-25 Sep 2002

GOES Precipitation4 km resolution

Conv

+

Reso

lved

Co

nv

+ Re

solv

ed

Prec

ipita

tion

Prec

ipita

tion

40 k

m re

solu

tion

40 k

m re

solu

tion

mmmm

Freitas, Longo et al... 2005

CATT-BRAMSCATT-BRAMS

Convective Transport of COConvective Transport of CO21Z 24 Sep 200221Z 24 Sep 2002

Vertical section at lat 10SVertical section at lat 10S

vertical vertical levellevel 11.5 km 11.5 km

CO (ppb)CO (ppb)

Freitas, Longo et al... 2005

CATT-BRAMSCATT-BRAMS

Plume of CO (ppb)Plume of CO (ppb)1100 m sigma-z1100 m sigma-z

00Z 27 Aug 200200Z 27 Aug 2002

40 km grid resolution40 km grid resolution

200 km grid resolution200 km grid resolutionSouth America and AfricaSouth America and Africa

CATT-BRAMSCATT-BRAMS

Heat and Water Budget:need new LBA regional

reanalysis

850 mb Anomaly Moisture Flux

Vertical Cross section of Vertical Cross section of Meridional Moisture FluxMeridional Moisture Flux

15 deg S

And

es

And

es

17th SSC Recomendation #6• The SSC recommends that a daily climatology data set

(gridded reanalysis) for the Amazon region should be organized by LBA specialists in the meteorology of South America, expressly for the purpose of input to land surface simulation models over the period starting in 2000 to the present (minus ca. 6 months). Required daily variables include mean, minimum and maximum air surface temperature, precipitation amount, mean solar radiation flux (downward shortwave), mean relative humidity, mean wind speed. The spatial resolution of the data set should be the highest possible under current observational and computational constraints.

Regional Reanalysis 2000/2004

Settings:- Regional Physical Statisttical Assimilation Systema RPSAS, v. 2003;

- Regional ETA model, 40 km, 38 levels, - Boundary conditions from Global NCEP (6 hrs) , weekly SST

Products:- Reanalysis of state variables (lat, lon, p, T, RU, u,v,w) 40km, 19 levels every 6 hr.

- 3 hourly outputs, up to 36 hours for 00Z e 12Z and up tp 12 hours for 06Z and 18Z;

Regional Reanalysis 2000/2004

Storage- Analysis : 135 Gb;- Boundary conditions : 155 Gb;- Regional reanalysis (post-processed) : 110 Gb / year = 550 Gb (2000-2004);

- Observations : 78 Gb (Source GMAO/NASA: GTS, ATOVS, QuikScat, TPW)

- Linux Server: Pentium IV dual core 3.2 GHz, 1 Gb Ram, 1Tb de disco ;

- Supercomputer NEC SX6: 10 proc. , 20 Gb RAM- CPTEC Data Assimilation Group (Aravéquia and Herdies plus 5 technicians)

- Processing time :- 17 minutes / Analysis - 10 minutes / Forecast (36hrs)

Regional Reanalysis 2000/2004

Status:- Running for 2000, 2001, 2002, 2003 e 2004:

Work schedulePeriod 2000 2001 2002 2003 2004

Start processing 07/set 12/jun 22/jul 05/apr 02/dec

Aprox. date for finishing

25/nov/05 02/dec/05 30/nov/05 10/dec/05 14/nov/05

Procedure:- Separate periods of 1 year each- 1 month redundancy for continuity

Observation Status:

- Assimilating between 2500 and 7500 obs/observ. time Upper Air Data: radiosson

and satellite

Regional Reanalysis 2000/2004

• Version 1 – operational data• Version 2 – add experimental data